The Tubby Car takes the Teletubbies to the Hidey Hup where they discover the Tubby Slidey. Tinky Winky, Dipsy, Laa-Laa and Po have great fun sliding down again and again.
- This episode will air on the date of Teletubbies' 20th Anniversary, on Silly Sock Day 31st March 2017.
- Po was the missing teletubby
- Tinky Winky was the boo shouter but Dipsy said goodbye for a final time.